pubs.usgs.govU.S. GEOLOGICAL SURMEY GEORGE OTIS SMITH, DIRECTOR 75000' 41000' 00' Henry Gannett,...

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Transcript of pubs.usgs.govU.S. GEOLOGICAL SURMEY GEORGE OTIS SMITH, DIRECTOR 75000' 41000' 00' Henry Gannett,...

Page 1: pubs.usgs.govU.S. GEOLOGICAL SURMEY GEORGE OTIS SMITH, DIRECTOR 75000' 41000' 00' Henry Gannett, Chief Topographer. George H. Cook, Geographer in charge. 50'